Solar-powered illuminator

Abstract

A solar-powered illuminator, which includes an integrated light receiving and emitting device having a solar chip and a LED chip, a rechargeable battery and an Application-Specific Integrated Circuit (ASIC), is provided. A transparent encapsulant of the integrated light receiving and emitting device focuses the incident sunlight on the solar chip to generate a first voltage. The rechargeable battery is electrically connected to the integrated light receiving and emitting device and is charged by the solar chip in the first voltage. The ASIC is electrically connected to the rechargeable battery and the light receiving and emitting device, and it steps up the first voltage into a second voltage and drives the LED chip to emit light via the discharge of the rechargeable battery in the second voltage. Consequently, the solar-powered illuminator has the advantages of small size, compactness, simple integration, easy installation and cost-effectiveness.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a solar-powered illuminator, and more particularly, to the solar-powered illuminator using an integrated light receiving and illuminating device.[0003]2. Description of the Prior Art[0004]Solid-state lighting source, such as the light emitting diode (LED), becomes more and more cost-effective as the technology advances. LED has the advantages of small volume, electricity saving, long life, glass free and toxic-gases free . . . etc. There are versatile LEDs, which includes red LEDs, blue LEDs, green LEDs and white LEDs, can be applied in many lighting application fields according to different usages, such as decoration, indication, display and illumination.[0005]On the other hand, solar cells are increasingly used as the clean energy sources because the solar energy is free and never used out, and the oil is getting more and more shorted and expensive. The solar chip of the light-focus ty...

AI Technical Summary

Benefits of technology

"The present invention provides a solar-powered illuminator that uses an integrated light receiving and emitting device. This device includes a solar chip and a LED chip, which are packaged separately in conventional devices, making them complex, bulky, and expensive. The new device is compact, simple, and cost-effective. It does not require a hard-wire connection to an external electrical system or a rechargeable battery. The device can be used for versatile outdoor applications, such as decoration lamps, garden lamps, and advertisement signs. It can also be used for road applications, such as streetlamps and warning signs. The integrated device includes a solar chip and a LED chip, which are covered by a transparent encapsulant and a conductive structure. The solar chip provides power to the LED chip through the conductive structure. The device also includes a rechargeable battery and an ASIC that steps up the voltage and drives the LED chip to emit light. The ASIC can also detect sunlight and drive the LED chip to emit light when the sunlight intensity is weak."

Problems solved by technology

On the other hand, solar cells are increasingly used as the clean energy sources because the solar energy is free and never used out, and the oil is getting more and more shorted and expensive.

The hard-wiring is difficult, inconvenient and expensive, and the recharge process is time-consuming, messy, troublesome and expensive.

However, the solar chip and the LED chip are packaged separately, so the conventional solar-powered illuminator is complex for integration, bulky, and expensive.

Nevertheless, the additional sensor needs some hard-wiring with other components, so it makes the integration process of the conventional solar-powered illuminator more complex.

Accordingly, the conventional solar-powered illuminator with a sensor is even more bulky, expensive and inconvenient to install.

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